Audience and Limits
The 18+ label indicates the intended audience for this guide and its demo. It is not a statement of local legality or an age-verification system. Responsible use involves setting personal limits for time and virtual-coin spending. If you feel you need support, you should find appropriate local qualified help. The demo does not provide account-level blocking or self-exclusion tools.
Wallet and Virtual Coins
The demo uses a virtual wallet that starts with a balance of 1000 coins. This balance is stored in your browser's local storage. You can manually restore the balance to exactly 1000 when it drops below 10 and you are idle. This is a manual set, not an automatic replenishment or a refill that clears your history. The coins do not have a cash value and cannot be withdrawn.
Privacy and Storage
Your virtual-coin balance and any fractional payout carry are stored in your browser's local storage. This data persists across refills and reloads. The page template loads Google Fonts stylesheets and font files from a third party. Clearing your cached files may leave this local storage intact. The absence of account controls does not prove that no personal data are processed elsewhere.
Game Mechanics: Square Range Mines
The demo features a game called Square Range Mines. It uses a 4x4 board with labels 1 through 16. You select 3, 4, or 5 hazards. The game samples from subsets where the difference between the largest and smallest hazard labels is a perfect square. You collect after at least one safe reveal. Choices are disabled if the gross return exceeds 1000 times the stake, though equality is allowed. The bank automatically collects only when no eligible uncertain choice remains.
Persistence and Control
Controls for stake, mode selectors, and refilling are locked while a round is active. If you reload the page during an unfinished round, the round ends without a refund, payout, or the ability to resume. Your captured stake remains deducted. The default stake is set to 20, and the first preset is restored upon reload. The fractional carry from previous rounds persists in local storage.
Mathematical Evidence
The expected RTP for Square Range Mines is 97% across all modes. Simulation measurements show slight variations. For example, with 3 hazards and low-1 policy, the measured RTP is 96.95%, while with 5 hazards and first-4 policy, it is 97.16%. These are supporting observations and not promised session results. The exact policy gross mean remains consistent with the expected 97%.
Frequently asked questions
Is the 18+ label a legal age gate?
No. It is this guide's own intended audience policy. It does not represent a universal legal age or an implemented age verification system.
How does the virtual-coin wallet work?
It starts at 1000 coins. You can manually restore it to exactly 1000 when the balance is below 10 and you are idle. The coins have no cash value and are stored in your browser's local storage.
What happens if I reload during a game?
The unfinished round ends without a refund, payout, or continuation. Your captured stake remains deducted. The fractional carry from previous rounds is preserved in local storage.
